If you have one/had one chime in -
Reliability?
Carryability?
Shootability?
The purpose of this gun - shoulder holster carry for in the car, to toss on for late night dog walks, and pocket carry when I need to pocket carry (not very often).
Currently leaning towards the Sig P938 version, because of the bigger sights and not needing to add another caliber to the stable, Crimson Trace has a lightguard for the Sig to add a WML. The alternative I'm thinking the Colt XSP with the dovetailed sights and light rail, and adding Novak sights, along with a compact WML, which would be slightly smaller, but need another caliber. Other advantage of the XSP - it's ~3-4 ounces lighter than the metal guns.
I'm not sure there is much shootability difference, between the .380 and 9mm guns, since the .380s are shrunk slightly to the 9mm guns.